Involuntary jerk (3)
I believe the answer is:
tic
(Other definitions for tic that I've seen before include "Nervous spasm" , "Muscle twitch" , "Convulsive twitch (of face)" , "Involuntary habitual response" , "Fuel oil" .)
I believe the answer is:
tic
(Other definitions for tic that I've seen before include "Nervous spasm" , "Muscle twitch" , "Convulsive twitch (of face)" , "Involuntary habitual response" , "Fuel oil" .)